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Roger OTT : Senior Engineer, EDF Research and Development
INTRODUCTION
in collaboration with France de CHATEAUVIEUX (RTE)
Electrical energy is distributed to customers in the form of a voltage constituting a three-phase sinusoidal system with a frequency of 50 Hz. One of the characteristic parameters of this system is the voltage amplitude. However, at a given point on the electrical power network, for a short period of time, we can sometimes observe either a sudden drop in amplitude, or a complete disappearance of the voltage. These disturbances are known as voltage dips or short interruptions.
This article is part of a series devoted to voltage quality in networks. The other articles deal with the following subjects:
— - Introduction ;
— - Fluctuations and flicker ;
— - Harmonics ;
— - Find out more.
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Voltage quality — Hollows and short cuts
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